*HEADING
FORCED MOTION OF A RIGID BODY - EXPLICIT
*RESTART,WRITE
*NODE,NSET=RBODY
*NODE,NSET=FXPNT
*ELEMENT,TYPE=R3D4,ELSET=RIGID
*RIGID BODY,ELSET=RIGID,REF NODE=100,POSITION=CENTER OF MASS
*ELEMENT,TYPE=ROTARYI,ELSET=BODYCMR
*ROTARY INERTIA,ELSET=BODYCMR,ORIENTATION=BDYAXES
 5.,5.,1.
*ORIENTATION,NAME=BDYAXES
*ELEMENT,TYPE=MASS,ELSET=TRANSLATIONAL_INERTIA
*MASS,ELSET=TRANSLATIONAL_INERTIA, TYPE=ANISOTROPIC
 1E-8, 1E-8, 1E-8
**************************************
*ELSET,ELSET=EALL
 BODYCMR, RIGID
*NSET,NSET=NALL
 RBODY, FXPNT
*INITIAL CONDITIONS,TYPE=VELOCITY
 100,4, 0.50
 100,5,-17.101007
 100,6,46.984631
******************************
** ADD A DUMMY TRUSS ELEMENT *
******************************
*NODE,NSET=DUMMY
*ELEMENT,TYPE=T3D2,ELSET=TRUSS
*SOLID SECTION,ELSET=TRUSS,MAT=TRUSS
*MATERIAL,NAME=TRUSS
*ELASTIC
1E7,0.2
*DENSITY
100,
*BOUNDARY
10,1,3,0
20,1,3,0
*NSET,NSET=QA_TEST_NALL
NALL,
**
*STEP
*DYNAMIC,EXPLICIT,DIRECT USER CONTROL
***1E-3,15.0
1E-3,3.0
*BULK VISCOSITY
*BOUNDARY,TYPE=DISP
FXPNT,1,3
*CLOAD
 1, 3, -20.0
*OUTPUT,HISTORY,TIME INTERVAL=1E-2
*NODE OUTPUT,NSET=NALL
U,V,A
*OUTPUT,FIELD,NUMBER INTERVAL=20
*NODE OUTPUT,NSET=NALL
U,V,A
*FILE OUTPUT,NUMBER INTERVAL=4, TIMEMARKS=YES
*NODE FILE, NSET=NALL
U,
*OUTPUT, FIELD, NUMBER INTERVAL=4, TIMEMARKS=YES
*NODE OUTPUT, NSET=QA_TEST_NALL
U,
*OUTPUT,HISTORY,VARIABLE=PRESELECT,TIMEINT=0.75
***OUTPUT,HISTORY,VARIABLE=PRESELECT
*END STEP